With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cGgsnSATotalQuotaGranted
Cisco Ggsn Service-Aware Total Quota Granted
1.3.6.1.4.1.9.9.497.1.1.3.10
This object indicates the total amount of quota granted.
Back to CISCO-GGSN-SERVICE-AWARE-MIB MIB page.
IPHost Network monitor allows you to monitor cGgsnSATotalQuotaGranted on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.